Existing French iPhone owners are reporting being contacted by the Orange, the official French carrier-partner, with special offers for the (rumoured) new, coming-soon model.

French tech site PCInpact is claiming that a number of its readers have been called by Orange regarding an upgrade to the future Apple mobile.

In what could offer a clue to what could also happen in other territories, there are apparently two options open to existing iPhone owners.

The first solution is a direct swap where owners can trade in their existing iPhone and get the second gen version for 50 euros.

The other option for those who would to keep their current iPhone, but also want the (supposedly) 3G version means they can buy the new model enjoying a "generous" discount.

Orange has not commented on the rumours. The 3G version of the iPhone is expected to be announced at an Apple developer event on 9 June.